I bought Peggy Halls book

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Jun 9, 2004
963
Hunter 40.5 Bayfield, WI
and it just came yesterday. I sat down and read most of it last night. GREAT book. It is an excellent guide for any boat owner. Thanks Peggy!!!
 
Jun 9, 2004
963
Hunter 40.5 Bayfield, WI
and it just came yesterday. I sat down and read most of it last night. GREAT book. It is an excellent guide for any boat owner. Thanks Peggy!!!
 

CalebD

.
Jun 27, 2006
1,479
Tartan 27' 1967 Nyack, NY
I very much agress Princess.

Except that I got my copy last year and read it before going to work on a friend's 32' Endeavor that had problems with its Groco head and tank and therefore had a bad 'nose' down below. Whatever the cost was (and it wasn't that much) it was well worth it as it covers all aspects of maintaining a healthy head and holding tank. My friend had been using some harsh chemicals in the holding tank and it was backing up into the head (bowl). The smell from this fluid was nauseating to me. I treated their tank with KO after a seemingly successful pump out with KO and the smell improved dramatically although there was still seepage back into the bowl. This got me thinking about home septic tank/cesspool treatments and got my mind out of the gutter. I then discovered that the air hose to the tank had been clogged by insects and/or overflow as there was a hard white calcified powder at the opening outside the hull which I poked out with a screwdriver with some foul smelling results as the pressure inside the tank equalized with the outside where I was. Now my friend's boat could actually be pumped out with working ventilation hose from the tank. The one thing that Peggy Hall (not Peggy Hill) did with her book that I am not doing right now is to keep it brief. It is concisely written and understandable without being anything like a textbook and is extremely helpful as well. Thanks Peggy.
 

CalebD

.
Jun 27, 2006
1,479
Tartan 27' 1967 Nyack, NY
I very much agress Princess.

Except that I got my copy last year and read it before going to work on a friend's 32' Endeavor that had problems with its Groco head and tank and therefore had a bad 'nose' down below. Whatever the cost was (and it wasn't that much) it was well worth it as it covers all aspects of maintaining a healthy head and holding tank. My friend had been using some harsh chemicals in the holding tank and it was backing up into the head (bowl). The smell from this fluid was nauseating to me. I treated their tank with KO after a seemingly successful pump out with KO and the smell improved dramatically although there was still seepage back into the bowl. This got me thinking about home septic tank/cesspool treatments and got my mind out of the gutter. I then discovered that the air hose to the tank had been clogged by insects and/or overflow as there was a hard white calcified powder at the opening outside the hull which I poked out with a screwdriver with some foul smelling results as the pressure inside the tank equalized with the outside where I was. Now my friend's boat could actually be pumped out with working ventilation hose from the tank. The one thing that Peggy Hall (not Peggy Hill) did with her book that I am not doing right now is to keep it brief. It is concisely written and understandable without being anything like a textbook and is extremely helpful as well. Thanks Peggy.
 
Jun 9, 2004
963
Hunter 40.5 Bayfield, WI
Peggy if I could ask one question

it is about our vent hose. After reading your book it got me thinking. Even though we replaced the holding tank last year (we had to. Before we bought it the vent hose had been blocked and because of the pressure over time the aluminum tank started to leak so we replaced it with a Triple M plastics tank), we still have odor. We did have one time near the end of the season when we tried to put water into the vent house from outside the hull and it was darn near impossible. The fitting on the outside has only a little tiny opening which means you really can't get any water pressure in there and I know realize from reading your wonderful book, no air flow either. I want to put in a bigger hose to the outside and then put a clamshell over it that will let me get some water and air in there. Does that make sense to you? Is there any reason I shouldn't do that? I will look forward to hearing from you. Thanks again for the great book.
 
Jun 9, 2004
963
Hunter 40.5 Bayfield, WI
Peggy if I could ask one question

it is about our vent hose. After reading your book it got me thinking. Even though we replaced the holding tank last year (we had to. Before we bought it the vent hose had been blocked and because of the pressure over time the aluminum tank started to leak so we replaced it with a Triple M plastics tank), we still have odor. We did have one time near the end of the season when we tried to put water into the vent house from outside the hull and it was darn near impossible. The fitting on the outside has only a little tiny opening which means you really can't get any water pressure in there and I know realize from reading your wonderful book, no air flow either. I want to put in a bigger hose to the outside and then put a clamshell over it that will let me get some water and air in there. Does that make sense to you? Is there any reason I shouldn't do that? I will look forward to hearing from you. Thanks again for the great book.
 
Dec 2, 1997
9,011
- - LIttle Rock
Do it! However, I'd do one more thing...

Install a new larger (1") vent fitting in the tank too, which will mean a larger diameter vent line ...which will provide more air to the tank in addition to making it easier to keep it cleaned out. Moving or adding fitting in a plastic tank isn't nearly as hard as it used to be before the invention of a li'l doodad called the Uniseal http://www.aussieglobe.com/uniseal1.htm (scroll through ALL the pages to see how to use it). Use a hole saw to cut a clean hole...install the Uniseal...a short piece of 1" OD pvc becomes the hose fitting...two hose clamps to keep it on the hose...you're done...for about $5 total including the piece of PVC and threaded plug--which you can get from any decent hardware store--for the existing vent fitting.
 
Dec 2, 1997
9,011
- - LIttle Rock
Do it! However, I'd do one more thing...

Install a new larger (1") vent fitting in the tank too, which will mean a larger diameter vent line ...which will provide more air to the tank in addition to making it easier to keep it cleaned out. Moving or adding fitting in a plastic tank isn't nearly as hard as it used to be before the invention of a li'l doodad called the Uniseal http://www.aussieglobe.com/uniseal1.htm (scroll through ALL the pages to see how to use it). Use a hole saw to cut a clean hole...install the Uniseal...a short piece of 1" OD pvc becomes the hose fitting...two hose clamps to keep it on the hose...you're done...for about $5 total including the piece of PVC and threaded plug--which you can get from any decent hardware store--for the existing vent fitting.
 

CalebD

.
Jun 27, 2006
1,479
Tartan 27' 1967 Nyack, NY
Princess, as Peggy suggested but why not

just add a second vent hose to the tank using Peggy's method.
 

CalebD

.
Jun 27, 2006
1,479
Tartan 27' 1967 Nyack, NY
Princess, as Peggy suggested but why not

just add a second vent hose to the tank using Peggy's method.
 

John

.
Jun 3, 2006
803
Catalina 36mkII Alameda CA
clearing vent hose

I suspected my vent hose was blocked. I took my compressed gas air horn, put it on the lower end of the hose, and gave it a couple of blasts of freon. (There is no noise from the horn when used this way.) It cleared the hose right up. For the first time since I owned the boat, I could hear air rushing in through the opening where the vent hose comes out when I pumped out the holding tank.
 

John

.
Jun 3, 2006
803
Catalina 36mkII Alameda CA
clearing vent hose

I suspected my vent hose was blocked. I took my compressed gas air horn, put it on the lower end of the hose, and gave it a couple of blasts of freon. (There is no noise from the horn when used this way.) It cleared the hose right up. For the first time since I owned the boat, I could hear air rushing in through the opening where the vent hose comes out when I pumped out the holding tank.
 
Dec 8, 2007
478
Irwin 41 CC Ketch LaConner WA
I dont know

if I would use a Uni-Seal for my holding tank or not. I use them regulary in my profesion when installing septic systems. They seem to form a good seal on a hard unyealding surface like a PVC tank ( wall thickness about 1/4" and stationary pipe ( sch 40 PVC ) bedded firmly in soil so there is no side loading. In a relitivly flexibal material like poly tanks and a highly motioned installment like a boat I am having some concern here. A question to Peggy. Do you know of any multible installments of this decice on production boats? Or personal use of this item.? It might just be the "cats meow" but I think it would need some testing first. IMHO EDIT: If I did use one I definetly would come in from the top. And with the use of a 1" sch 40, 90 degree you will only need about 2 1/2" clearence. PS ; Thanks for the site. I think my supplier is charging me 8.00 apiece !!
 
Dec 8, 2007
478
Irwin 41 CC Ketch LaConner WA
I dont know

if I would use a Uni-Seal for my holding tank or not. I use them regulary in my profesion when installing septic systems. They seem to form a good seal on a hard unyealding surface like a PVC tank ( wall thickness about 1/4" and stationary pipe ( sch 40 PVC ) bedded firmly in soil so there is no side loading. In a relitivly flexibal material like poly tanks and a highly motioned installment like a boat I am having some concern here. A question to Peggy. Do you know of any multible installments of this decice on production boats? Or personal use of this item.? It might just be the "cats meow" but I think it would need some testing first. IMHO EDIT: If I did use one I definetly would come in from the top. And with the use of a 1" sch 40, 90 degree you will only need about 2 1/2" clearence. PS ; Thanks for the site. I think my supplier is charging me 8.00 apiece !!
 
Dec 2, 1997
9,011
- - LIttle Rock
I know of at least a dozen owners who've used

the Uniseal to relocate both vent and inlet fittings on the top AND on a side with no problems at all for several years now. SeaLand is even selling 'em as part of their kit to move the tank discharge to the top of the tank. I wouldn't recommend it for the discharge though--and neither does Aussie Globe--unless it IS on the top with a tube to the bottom. Because the rubber flexes a little, there's actually less stress on a Uniseal than on a thread-barb hose fitting threaded into a spinwelded female tank fitting. Caleb, a second vent prob'y isn't needed...in fact, may not even help if both vent lines are vertical or very long.
 
Dec 2, 1997
9,011
- - LIttle Rock
I know of at least a dozen owners who've used

the Uniseal to relocate both vent and inlet fittings on the top AND on a side with no problems at all for several years now. SeaLand is even selling 'em as part of their kit to move the tank discharge to the top of the tank. I wouldn't recommend it for the discharge though--and neither does Aussie Globe--unless it IS on the top with a tube to the bottom. Because the rubber flexes a little, there's actually less stress on a Uniseal than on a thread-barb hose fitting threaded into a spinwelded female tank fitting. Caleb, a second vent prob'y isn't needed...in fact, may not even help if both vent lines are vertical or very long.
 
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